Browse wiki
Jump to navigation
Jump to search
This is a report of a loss of emergency as … This is a report of a loss of emergency assessment capability as required by 10 CFR 50.72(b)(3)(xiii).</br>On April 25, 2013 at 1759 CDT, with Unit 2 in Mode 6 during a refueling outage, power was interrupted to all Unit 2 vent stack radiation monitors as part of a pre-planned activity to connect the radiation monitors to an alternate temporary power supply to support de-energizing the normal power source for preventative maintenance. The connection to the alternate supply was completed and power was restored to the vent stack radiation monitors at 1845 CDT. While the radiation monitors were without power, pre-planned compensatory measures were implemented to monitor vent stack discharge and to minimize activities that posed a potential for release.</br>At the completion of the preventive maintenance on the normal power supply, power to the vent stack radiation monitors will again be briefly interrupted to reconnect the normal power source to the monitors. The pre-planned compensatory measures will again be utilized during this power interruption. An update to this report will be provided following the restoration of normal power to the radiation monitors.</br>The NRC Resident inspector has been informed.</br>* * * UPDATE AT 0400 EDT ON 4/29/13 FROM BRANNON PAYNE TO S. SANDIN * * *</br>On 28 April, 2013, power was again interrupted to the Unit 2 vent stack radiation monitors to restore the connection to their normal power supply. The radiation monitors were out of service from 2315 until 2340 CDT. Pre-planned compensatory measures were again implemented to monitor vent stack discharge and minimize potential for vent stack release.</br>The reported time for the initial loss of vent stack radiation monitoring on April 25, 2013 was incorrect. The correct time was 1759 CDT.</br>The NRC Resident has been notified.</br>Notified R2DO (Sykes). has been notified.
Notified R2DO (Sykes). +
22:59:00, 25 April 2013 +
48,968 +
20:51:00, 25 April 2013 +
22:59:00, 25 April 2013 +
This is a report of a loss of emergency as … This is a report of a loss of emergency assessment capability as required by 10 CFR 50.72(b)(3)(xiii).</br>On April 25, 2013 at 1759 CDT, with Unit 2 in Mode 6 during a refueling outage, power was interrupted to all Unit 2 vent stack radiation monitors as part of a pre-planned activity to connect the radiation monitors to an alternate temporary power supply to support de-energizing the normal power source for preventative maintenance. The connection to the alternate supply was completed and power was restored to the vent stack radiation monitors at 1845 CDT. While the radiation monitors were without power, pre-planned compensatory measures were implemented to monitor vent stack discharge and to minimize activities that posed a potential for release.</br>At the completion of the preventive maintenance on the normal power supply, power to the vent stack radiation monitors will again be briefly interrupted to reconnect the normal power source to the monitors. The pre-planned compensatory measures will again be utilized during this power interruption. An update to this report will be provided following the restoration of normal power to the radiation monitors.</br>The NRC Resident inspector has been informed.</br>* * * UPDATE AT 0400 EDT ON 4/29/13 FROM BRANNON PAYNE TO S. SANDIN * * *</br>On 28 April, 2013, power was again interrupted to the Unit 2 vent stack radiation monitors to restore the connection to their normal power supply. The radiation monitors were out of service from 2315 until 2340 CDT. Pre-planned compensatory measures were again implemented to monitor vent stack discharge and minimize potential for vent stack release.</br>The reported time for the initial loss of vent stack radiation monitoring on April 25, 2013 was incorrect. The correct time was 1759 CDT.</br>The NRC Resident has been notified.</br>Notified R2DO (Sykes). has been notified.
Notified R2DO (Sykes). +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
00:00:00, 29 April 2013 +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
02:01:08, 2 March 2018 +
20:51:00, 25 April 2013 +
false +
false +
-0.0888 d (-2.13 hours, -0.0127 weeks, -0.00292 months) +
22:59:00, 25 April 2013 +
Vent Stack Radiation Monitors De-Energized for Short Duration During Pre-Planned Maintenance +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.